patch 8.2.1284: Vim9: skipping over type includes following white space

Problem:    Vim9: skipping over type includes following white space, leading
            to an error for missing white space.
Solution:   Do not skip over white space after the type.
diff --git a/src/vim9compile.c b/src/vim9compile.c
index 3be8733..e032e23 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -1944,7 +1944,7 @@
 		if (p[1] == ':')
 		    p = skip_type(skipwhite(p + 2));
 		else
-		    p = skipwhite(p + 1);
+		    ++p;
 	    }
 	}
 	else